An Improved Lagrangian-Inverse Method for Evaluating the Dynamic Constitutive Parameters of Concrete
The dynamic constitutive behaviors of concrete-like materials are of vital importance for structure designing under impact loading conditions. This study proposes a new method to evaluate the constitutive behaviors of ordinary concrete at high strain rates. The proposed method combines the Lagrangia...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-04-01
|
| Series: | Materials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1944/13/8/1871 |
| _version_ | 1797570477797933056 |
|---|---|
| author | Xinlu Yu Yingqian Fu Xinlong Dong Fenghua Zhou Jianguo Ning |
| author_facet | Xinlu Yu Yingqian Fu Xinlong Dong Fenghua Zhou Jianguo Ning |
| author_sort | Xinlu Yu |
| collection | DOAJ |
| description | The dynamic constitutive behaviors of concrete-like materials are of vital importance for structure designing under impact loading conditions. This study proposes a new method to evaluate the constitutive behaviors of ordinary concrete at high strain rates. The proposed method combines the Lagrangian-inverse analysis method with optical techniques (ultra-high-speed camera and digital image correlation techniques). The proposed method is validated against finite-element simulation. Spalling tests were conducted on concretes where optical techniques were employed to obtain the high-frequency spatial and temporal displacement data. We then obtained stress–strain curves of concrete by applying the proposed method on the results of spalling tests. The results show non-linear constitutive behaviors in these stress–strain curves. These non-linear constitutive behaviors can be possibly explained by local heterogeneity of concrete. The proposed method provides an alternative mean to access the dynamic constitutive behaviors which can help future structure designing of concrete-like materials. |
| first_indexed | 2024-03-10T20:25:09Z |
| format | Article |
| id | doaj.art-6d8588598ef9412b827a3422ff9cdd0f |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T20:25:09Z |
| publishDate | 2020-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-6d8588598ef9412b827a3422ff9cdd0f2023-11-19T21:50:01ZengMDPI AGMaterials1996-19442020-04-01138187110.3390/ma13081871An Improved Lagrangian-Inverse Method for Evaluating the Dynamic Constitutive Parameters of ConcreteXinlu Yu0Yingqian Fu1Xinlong Dong2Fenghua Zhou3Jianguo Ning4School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, ChinaKey Laboratory of Impact and Safety Engineering (Ningbo University), Ministry of Education, Ningbo 315211, ChinaKey Laboratory of Impact and Safety Engineering (Ningbo University), Ministry of Education, Ningbo 315211, ChinaSchool of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, ChinaThe dynamic constitutive behaviors of concrete-like materials are of vital importance for structure designing under impact loading conditions. This study proposes a new method to evaluate the constitutive behaviors of ordinary concrete at high strain rates. The proposed method combines the Lagrangian-inverse analysis method with optical techniques (ultra-high-speed camera and digital image correlation techniques). The proposed method is validated against finite-element simulation. Spalling tests were conducted on concretes where optical techniques were employed to obtain the high-frequency spatial and temporal displacement data. We then obtained stress–strain curves of concrete by applying the proposed method on the results of spalling tests. The results show non-linear constitutive behaviors in these stress–strain curves. These non-linear constitutive behaviors can be possibly explained by local heterogeneity of concrete. The proposed method provides an alternative mean to access the dynamic constitutive behaviors which can help future structure designing of concrete-like materials.https://www.mdpi.com/1996-1944/13/8/1871concrete-like materialsdynamic constitutive behaviorslagrangian-inverse analysisDigital image correlationregularizationnon-liner elastic constitution |
| spellingShingle | Xinlu Yu Yingqian Fu Xinlong Dong Fenghua Zhou Jianguo Ning An Improved Lagrangian-Inverse Method for Evaluating the Dynamic Constitutive Parameters of Concrete Materials concrete-like materials dynamic constitutive behaviors lagrangian-inverse analysis Digital image correlation regularization non-liner elastic constitution |
| title | An Improved Lagrangian-Inverse Method for Evaluating the Dynamic Constitutive Parameters of Concrete |
| title_full | An Improved Lagrangian-Inverse Method for Evaluating the Dynamic Constitutive Parameters of Concrete |
| title_fullStr | An Improved Lagrangian-Inverse Method for Evaluating the Dynamic Constitutive Parameters of Concrete |
| title_full_unstemmed | An Improved Lagrangian-Inverse Method for Evaluating the Dynamic Constitutive Parameters of Concrete |
| title_short | An Improved Lagrangian-Inverse Method for Evaluating the Dynamic Constitutive Parameters of Concrete |
| title_sort | improved lagrangian inverse method for evaluating the dynamic constitutive parameters of concrete |
| topic | concrete-like materials dynamic constitutive behaviors lagrangian-inverse analysis Digital image correlation regularization non-liner elastic constitution |
| url | https://www.mdpi.com/1996-1944/13/8/1871 |
| work_keys_str_mv | AT xinluyu animprovedlagrangianinversemethodforevaluatingthedynamicconstitutiveparametersofconcrete AT yingqianfu animprovedlagrangianinversemethodforevaluatingthedynamicconstitutiveparametersofconcrete AT xinlongdong animprovedlagrangianinversemethodforevaluatingthedynamicconstitutiveparametersofconcrete AT fenghuazhou animprovedlagrangianinversemethodforevaluatingthedynamicconstitutiveparametersofconcrete AT jianguoning animprovedlagrangianinversemethodforevaluatingthedynamicconstitutiveparametersofconcrete AT xinluyu improvedlagrangianinversemethodforevaluatingthedynamicconstitutiveparametersofconcrete AT yingqianfu improvedlagrangianinversemethodforevaluatingthedynamicconstitutiveparametersofconcrete AT xinlongdong improvedlagrangianinversemethodforevaluatingthedynamicconstitutiveparametersofconcrete AT fenghuazhou improvedlagrangianinversemethodforevaluatingthedynamicconstitutiveparametersofconcrete AT jianguoning improvedlagrangianinversemethodforevaluatingthedynamicconstitutiveparametersofconcrete |